EP0902314A3 - Method and device for continuous and uniform dimming of luminous flux in an optical beam path - Google Patents
Method and device for continuous and uniform dimming of luminous flux in an optical beam path Download PDFInfo
- Publication number
- EP0902314A3 EP0902314A3 EP98114514A EP98114514A EP0902314A3 EP 0902314 A3 EP0902314 A3 EP 0902314A3 EP 98114514 A EP98114514 A EP 98114514A EP 98114514 A EP98114514 A EP 98114514A EP 0902314 A3 EP0902314 A3 EP 0902314A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- luminous flux
- beam path
- optical beam
- continuous
- uniform dimming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000004907 flux Effects 0.000 title abstract 3
- 230000003287 optical effect Effects 0.000 title abstract 2
- 239000004973 liquid crystal related substance Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4298—Coupling light guides with opto-electronic elements coupling with non-coherent light sources and/or radiation detectors, e.g. lamps, incandescent bulbs, scintillation chambers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
- B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
- B60Q3/66—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides for distributing light among several lighting devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/20—Optical features of instruments
- B60K2360/33—Illumination features
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Liquid Crystal (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
Es wird vorgeschlagen, den von einer Entladungslampe (1) erzeugten Lichtstrom (2) durch eine steuerbare Streuung zu dimmen. Dazu wird im optischen Strahlengang des Lichtstroms (2) ein vorzugsweise elektrisch steuerbarer Diffusor (6) angeordnet. Dieser kann aus einem in einem transparenten Polymer eingebetteten Flüssigkristall bestehen. Das vorgeschlagene Verfahren und die Vorrichtung zur Durchführung des Verfahrens kann vorteilhaft in Verbindung mit einer zentralen Lichtquelle (9) in einem Fahrzeug verwendet werden. It is proposed to dim the luminous flux (2) generated by a discharge lamp (1) by means of controllable scattering. For this purpose, a preferably electrically controllable diffuser (6) is arranged in the optical beam path of the luminous flux (2). This can consist of a liquid crystal embedded in a transparent polymer. The proposed method and the device for carrying out the method can advantageously be used in connection with a central light source (9) in a vehicle.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19735585 | 1997-08-16 | ||
DE19735585A DE19735585A1 (en) | 1997-08-16 | 1997-08-16 | Discharge lamp light dimming |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0902314A2 EP0902314A2 (en) | 1999-03-17 |
EP0902314A3 true EP0902314A3 (en) | 2000-01-05 |
EP0902314B1 EP0902314B1 (en) | 2006-10-04 |
Family
ID=7839195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98114514A Expired - Lifetime EP0902314B1 (en) | 1997-08-16 | 1998-08-03 | Illumination unit comprising a device for continuous and uniform dimming of a luminous flux in an optical beam path |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0902314B1 (en) |
DE (2) | DE19735585A1 (en) |
ES (1) | ES2270485T3 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19906754A1 (en) * | 1999-02-17 | 2000-08-31 | Mannesmann Vdo Ag | Display unit |
DE10110757A1 (en) * | 2001-03-07 | 2002-09-19 | Bayerische Motoren Werke Ag | Attachment for a screen display surface in a motor vehicle, consists of a light transparent hollow chamber filled with a light transparent material |
DE102021118773A1 (en) | 2021-07-20 | 2023-01-26 | Reichhardt Gmbh Steuerungstechnik | Lighting system with multiple lights |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0023741A1 (en) * | 1979-08-02 | 1981-02-11 | Koninklijke Philips Electronics N.V. | Electrophoretic image display device |
EP0578827A1 (en) * | 1992-01-30 | 1994-01-19 | Nippon Hoso Kyokai | Liquid crystal light regulating plate and illuminator including the same |
JPH06281909A (en) * | 1993-03-26 | 1994-10-07 | A G Technol Kk | Liquid crystal optical device and illuminator using it |
US5629996A (en) * | 1995-11-29 | 1997-05-13 | Physical Optics Corporation | Universal remote lighting system with nonimaging total internal reflection beam transformer |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2125561C (en) * | 1991-11-01 | 2003-01-28 | Joseph Aloysius Check, Iii | Light valve employing a film comprising an encapsulated liquid suspension, and method of making such film |
DE4439547A1 (en) * | 1994-11-05 | 1996-05-09 | Hella Kg Hueck & Co | Internal lighting system for motor vehicle |
-
1997
- 1997-08-16 DE DE19735585A patent/DE19735585A1/en not_active Withdrawn
-
1998
- 1998-08-03 EP EP98114514A patent/EP0902314B1/en not_active Expired - Lifetime
- 1998-08-03 DE DE59813750T patent/DE59813750D1/en not_active Expired - Fee Related
- 1998-08-03 ES ES98114514T patent/ES2270485T3/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0023741A1 (en) * | 1979-08-02 | 1981-02-11 | Koninklijke Philips Electronics N.V. | Electrophoretic image display device |
EP0578827A1 (en) * | 1992-01-30 | 1994-01-19 | Nippon Hoso Kyokai | Liquid crystal light regulating plate and illuminator including the same |
JPH06281909A (en) * | 1993-03-26 | 1994-10-07 | A G Technol Kk | Liquid crystal optical device and illuminator using it |
US5629996A (en) * | 1995-11-29 | 1997-05-13 | Physical Optics Corporation | Universal remote lighting system with nonimaging total internal reflection beam transformer |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 01 28 February 1995 (1995-02-28) * |
Also Published As
Publication number | Publication date |
---|---|
DE19735585A1 (en) | 1999-02-18 |
EP0902314A2 (en) | 1999-03-17 |
DE59813750D1 (en) | 2006-11-16 |
ES2270485T3 (en) | 2007-04-01 |
EP0902314B1 (en) | 2006-10-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69615841T2 (en) | TARGETED LIGHTING DEVICE | |
EP0864897A3 (en) | Light source device, illuminating system and image projecting apparatus | |
DE4342822A1 (en) | Liquid crystal display device | |
EP0836234A3 (en) | Optoelectronic element | |
ATE357289T1 (en) | CARRIER FOR ANALYTE DETERMINATION METHODS AND METHOD FOR PRODUCING THE SUPPORT | |
EP1198160A3 (en) | Liquid crystal display device and lighting device | |
EP1674789A3 (en) | Lamp unit comprising a light source, a light conducting body and a light redirecting part | |
EP0962959A3 (en) | Blue light electrodeless high intensity discharge lamp system | |
EP1135005A3 (en) | Device for controlling light sources with ballast | |
CA2009584A1 (en) | Lighting system for illuminating billboards and the like | |
EP1260196A3 (en) | Illumination device | |
DE59809496D1 (en) | DEVICE FOR DETECTING DIFFUSING SPREADING IMPURITIES IN TRANSPARENT CONTAINERS | |
EP0902314A3 (en) | Method and device for continuous and uniform dimming of luminous flux in an optical beam path | |
DE69024545D1 (en) | Light source apparatus for dividing white light into light with several color components | |
DE68906946T2 (en) | Lamp. | |
DE3233820A1 (en) | Combination light | |
EP1059176A2 (en) | Illuminated image | |
EP1187178A3 (en) | Gas discharge lamp and lighting system | |
ES2054583B1 (en) | AN OPCIFYING EXTENDER IN PARTICLES FOR POLYMERIC COATINGS. | |
WO1999005897A3 (en) | Method for displaying images and device for realising the same | |
EP1122576A3 (en) | Optical system | |
DE19736879C2 (en) | Backlight | |
EP1347234A3 (en) | Lighting system | |
DE20115797U1 (en) | Bicycle headlights with LEDs | |
EP0982704A3 (en) | Information display device, particularly advertising and/or graphic indicia |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE ES FR GB |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
RIC1 | Information provided on ipc code assigned before grant |
Free format text: 7G 02F 1/1333 A, 7G 02F 1/13 B, 7G 02F 1/167 B, 7F 21V 8/00 B, 7G 12B 11/00 B, 7A 61B 1/07 B |
|
17P | Request for examination filed |
Effective date: 19991201 |
|
AKX | Designation fees paid |
Free format text: DE ES FR GB |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS AKTIENGESELLSCHAFT |
|
17Q | First examination report despatched |
Effective date: 20050406 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RTI1 | Title (correction) |
Free format text: DEVICE FOR CONTINUOUS AND UNIFORM DIMMING OF LUMINOUS FLUX IN AN OPTICAL BEAM PATH |
|
RTI1 | Title (correction) |
Free format text: ILLUMINATION UNIT COMPRISING A DEVICE FOR CONTINUOUS AND UNIFORM DIMMING OF A LUMINOUS FLUX IN AN OPTICAL BEAM PATH |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE ES FR GB |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 59813750 Country of ref document: DE Date of ref document: 20061116 Kind code of ref document: P |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20070103 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2270485 Country of ref document: ES Kind code of ref document: T3 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20070705 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20080828 Year of fee payment: 11 Ref country code: DE Payment date: 20080822 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20080813 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20080821 Year of fee payment: 11 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20090803 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20100430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090831 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100302 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20090804 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090803 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090804 |